li{
    list-style: none;
}
.a1{
    width: 100%;
    background-color: #a6b1e1;
}
.a2{
    margin: 0 auto;
    width: 1024px;
    height: 440px;
    padding-top: 13px;
}
.a3{
    display: flex;
    align-items: center;
    height: 46px;
    padding: 0 10px;
}
.a3>span{
    font-size: 18px;
    color: white;
    margin-right: 365px;
}
.a4 span {
    font-size: 16px;
    color: white;
    margin-right: 23px;
}
.a7{
    font-size: 45px;
    color: black;
    text-align: center;
    padding-top: 30px;
}
.a8{
    color: white;
    font-size: 21px;
    font-weight: 200;
    margin-top: 62px;
    text-align: center;
}
.a9{
    color: #efbfbf;
    border-radius: 2px;
    font-size: 18px;
    box-shadow: inset 0 0 0 2px #efbfbf;
    margin-top: 36px;
    text-align: center;
    height: 40px;
    width: 100px;
    margin-left: auto;
    margin-right: auto;
    padding-top: 10px;
}
.b1{
    height: 302px;
    width: 1024px;
    margin: 74px auto 0 auto;
    display: flex;
    flex-wrap: wrap;
}
.b2{
    height: 144px;
    width: 502px;
    display: flex;
    justify-content: space-between;
    flex-direction: column;
}
.b2 span{
    font-size: 30px;
    font-weight: 200;
    color: black;
}
.b2 p{
    color: #aaa;
    font-size: 18px;
    line-height: 1.4em;
}
.c1{
    height: 80px;
    width: 1024px;
    margin: 2px auto 0 auto;
}
.c3{
    font-size: 14px;
    text-align: center;
    color: #aaa;
    padding-top: 30px;
    margin: 0 auto;
}
.c2 p{
    font-size: 14px;
    text-align: center;
    color: #aaa;
    margin-top: px;
    margin-left: auto;
    margin-right: auto;
}